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require "spec/helper/all"
require "tempfile"
DELAY = 0.1
describe EventMachine::Synchrony do
before(:each) { @temp_file = Tempfile.new("stdout") }
after(:each) { @temp_file.unlink }
def with_input(string = "", &block)
string = "#{string}\n"
@temp_file.write string
@temp_file.flush
EM::Synchrony.add_timer(DELAY) do
original_stdin = STDIN
STDIN.reopen(@temp_file.path)
block.call if block_given?
STDIN.reopen(original_stdin)
end
end
it "waits for input" do
EM.synchrony do
start = now
with_input do
EM::Synchrony.gets
(now - start.to_f).should be_within(DELAY * 0.15).of(DELAY)
end
EM.add_timer(DELAY * 2) { EM.stop }
end
end
it "trails input with a newline to emulate gets" do
EM.synchrony do
with_input("Hello") do
EM::Synchrony.gets.should == "Hello\n"
end
EM.add_timer(DELAY * 2) { EM.stop }
end
end
it "should stop after the first line" do
EM.synchrony do
with_input("Hello\nWorld!") do
EM::Synchrony.gets.should == "Hello\n"
end
EM.add_timer(DELAY * 2) { EM.stop }
end
end
end
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